Metretopodidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Ephemeroptera
Subordo: Pisciformia
Superfamilia: Siphlonuroidea

Familia: Metretopodidae
Genera: Metretopus – Siphloplecton
References

Staniczek, A.H. & Godunko, R.J. 2016. Revision of fossil Metretopodidae (Insecta: Ephemeroptera) in Baltic amber—Part 3: Description of two new species of Siphloplecton Clemens, 1915, with notes on the re-discovered lectotype of Siphloplecton macrops (Pictet-Baraban & Hagen, 1856). Zootaxa 4103(1): 1–24. DOI: 10.11646/zootaxa.4103.1.1. Reference page.

Metretopodidae is a family of cleftfooted minnow mayflies in the order Ephemeroptera. There are at least 3 genera and more than 20 described species in Metretopodidae.[1][2][3][4]
Genera

These three genera belong to the family Metretopodidae:

Metreplecton Kluge, 1996
Metretopus Eaton, 1901
Siphloplecton Clemens, 1915

References

"Metretopodidae Report". Integrated Taxonomic Information System. Retrieved 2019-06-14.
"Metretopodidae". GBIF. Retrieved 2019-06-14.
"Family Metretopodidae information". BugGuide.net. Retrieved 2019-06-14.

"Mayfly Central". Retrieved 2019-06-14.

Further reading

Barber-James, Helen M.; Gattolliat, Jean-Luc; Sartori, Michel; Hubbard, Michael D. (2008). "Global diversity of mayflies (Ephemeroptera, Insecta) in freshwater". Freshwater Animal Diversity Assessment. Developments in Hydrobiology. Vol. 595. Springer. pp. 339–350. doi:10.1007/978-1-4020-8259-7_37. ISBN 978-1-4020-8258-0.
Kluge, Nikita (2013). The phylogenetic system of Ephemeroptera. Springer Science & Business Media. doi:10.1007/978-94-007-0872-3. ISBN 978-94-015-3942-5. S2CID 39671739.
Campbell, Ian C., ed. (1990). Mayflies and Stoneflies: Life Histories and Biology. Springer. doi:10.1007/978-94-009-2397-3. ISBN 978-94-010-7579-4. S2CID 39201439.
Edmunds Jr., George F. (1972). "Biogeography and evolution of Ephemeroptera". Annual Review of Entomology. 17: 21–42. doi:10.1146/annurev.en.17.010172.000321.